70680961517 has 4 divisors (see below), whose sum is σ = 70684005600. Its totient is φ = 70677917436.

The previous prime is 70680961469. The next prime is 70680961537. The reversal of 70680961517 is 71516908607.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70680961517 - 2⁶ = 70680961453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70680961537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1486943 + ... + 1533740.

It is an arithmetic number, because the mean of its divisors is an integer number (17671001400).

Almost surely, 2^70680961517 is an apocalyptic number.

It is an amenable number.

70680961517 is a deficient number, since it is larger than the sum of its proper divisors (3044083).

70680961517 is a wasteful number, since it uses less digits than its factorization.

70680961517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3044082.

The product of its (nonzero) digits is 635040, while the sum is 50.

The spelling of 70680961517 in words is "seventy billion, six hundred eighty million, nine hundred sixty-one thousand, five hundred seventeen".